My 52 220 B Cabriolet has no key. As some of you may know, a new cylinder/switch is very expensive. My local locksmith who is very good, says that he cannot refit a new key. Can one be ordered from Mercedes? Can someone rekey it? Or does someone have a used switch (with key) that they would be willing to sell for a reasonable price? Thanks for your help.

If you have your build sheet from Mercedes Benz the key code is identified. The vendor that Craig identified can cut the key to the key code and provide the key blank. I believe that the original key blank for the 220 was a Neiman profile M or your can substitute an ILCO 65K (non-original)